Lisinopril and tsh

I am a 48-year-old male that is still pretty active playing competitive soccer several times per week. I am in good health except that my BP was considered a little high back four years ago and was originally put on a diuretic which made me cramp up easily on the soccer field. I asked my doctor for something different and was changed over to Atenolol. I have been living with the Atenolol side effects for that time and finally had enough. I had recently moved and changed doctors. Now was a good time to complain about the restless nights that I attribute to Atenolol (insomnia is one side effect). My new doctor knowing that I am an athlete suggested Lisinopril.
Again, my research is after the fact and was really spurred by a trip back home and a chat with my brother who is 49 and was just recently put on Liprinopril too. He described some bazaar conditions that he believed were Lisinopril side effects. When researched, he was right. He experienced the blackness or tunnel vision and the feeling of passing out while at work. He felt that he couldn’t drive as the effects where hampering his ability to do so. He stopped taking the drug and started a regiment of fish oil with his other daily supplements. This was two months ago and he is doing great. He too is still an athlete and runs in Masters Track & Field.
For me, it was a little different. I started Lisinopril on a Friday as my Atenolol had just run out on Thursday. I asked the Pharmacist if there was an issue with starting Lisinopril after stopping Atenolol only one day apart. She said there were no issues. 5 days later, Wednesday, while at work I developed an incredible lower back pain on the left side. I began to have nausea and heavily salivate as if I was going to throw up. I ran to the bathroom where I sat on the toilet for a half hour rubbing my back & hip believing it was some intestinal issue or gas. To no avail… When I felt stabile enough, I left work only to sit in my car wondering if was going to be able to drive and if I could should I drive home or to the hospital. Well, I drove home and went to bed for a couple of hours before I felt well enough to function normally. It’s been two weeks and the dull lower back pain that feels similar to a back strain persists. I’ll be heading back to the doctor with this information and will start the fish oil with my daily supplementation program.
Thanks to this website because I was able to find at least five examples out of about the first twenty postings that matched my suspected side effects.

I posted here in early Sept. about my problems with lisinopril. After reading other posts I started doing some google searches. Because a previous HBP medicine caused my thyroid function go down I was switched to Lisinopril. Two years later, my throid levels which had recovered are now going down again. Several posters mentioned suppelmenting with zinc to deal with the cough so many people develop. A "lisinopril zinc" search had several sites that all stated in practically the same words that no research showed a link to zinc and lisinopril but supplementation might be a good idea. (Don't dose yourself with zinc because that can cause things to go out of whack.) I also found an article by Dr. Ron Hoffman about "Drugs That Steal." He reported that ACE-inhibitors caused zinc to be depleted from the body.
Then, I googled "zinc TSH". TSH is the indicator of how your thyroid is working. There I found several articles about how low zinc levels may cause low thyroid symptoms. Ask low-thyroid sufferers how hard it is to get doctors to diagnose and deal with this wide range of symptoms that are often vague.
Now I'm stuck. Is it lisionpril or is it my thyroid? My doctor sees the HBP first and wants to add medications to deal with the first medication's side effects. But then suppose there are more side effects from the next medication. This is a real quality of life issue.